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VulnerabilityPublished Updated

CVE-2024-27622: CMSMadeSimple · Special Element Injection

Affects CMSMadeSimpleSource CVE Database V5

0

Not known to be exploited · CVSS 7.2 High.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
7.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.9% chance of exploitation in 30 days – higher than 80% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Mar 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
GitHubcapture0x/CMSMadeSimplepkg:github/capture0x/CMSMadeSimpleOther threatsAffected
  • =2.2.19
  • =2.2.21
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Organizations should immediately verify if they are running CMS Made Simple versions 2.2.19 or 2.2.21 with the User Defined Tags module enabled. 2) Audit and monitor administrative accounts for suspicious activity or unauthorized access attempts. 3) Temporarily disable or remove the User Defined Tags module if feasible until a patch is released. 4) Implement web application firewalls (WAF) with custom rules to detect and block suspicious PHP code injection attempts targeting the module. 5) Conduct regular code reviews and input validation improvements on custom modules or extensions. 6) Maintain up-to-date backups and have an incident response plan ready in case of compromise. 7) Monitor official CMS Made Simple channels for forthcoming patches or security advisories and apply updates promptly once available.

Description

A remote code execution vulnerability has been identified in the User Defined Tags module of CMS Made Simple version 2.2.19 / 2.2.21. This vulnerability arises from inadequate sanitization of user-supplied input in the 'Code' section of the module. As a result, authenticated users with administrative privileges can inject and execute arbitrary PHP code.

References

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